Very clean and easy to read, also all the attachments and general proportions seem correct to me, well done! Two minor critiques: You could achieve more dynamics and energy in your muscle inventions if you showed a bit more relaxation and contraction for each pose. As you can see in the tracings, which you did rather well, the pecs normally don't just hang from the rib cage like a cloth: They bulge out when contracted and stretch thin and straight when relaxed. Furthermore, about your last tracing of Anthony: In this complex pose the directions of the muscle fibres of the sternocostal and abdominal portions are unclear, bc you didn't draw them through where they are being covered by the clavicular portion. It doesn't look like you knew how the muscle forms behave in this section. Also keep an eye out for symmetry: Itn your tracing, it appears that the origin areas for the clavicular portions are not the same on both sides and the abdominal portions seem to vary in size. Here, too, it might be helpful to draw through the forms in order to visualize the exact points where the muscles attach. Then the 3d forms you tried to emphasize around the manubrium, for example, will appear more believable. Hope this helps! Have fun studying. Felix